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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Same as
None of these
Higher
Lower

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Hydraulics and Fluid Mechanics in ME
The velocity of the liquid flowing through the divergent portion of a Venturimeter

Remains constant
Increases
Decreases
Depends upon mass of liquid

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is greater than the critical depth, the flow is called

Turbulent flow
Tranquil flow
Critical flow
Torrential flow

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Hydraulics and Fluid Mechanics in ME
Gradually varied flow is

non-steady uniform
steady non-uniform
non-steady non-uniform
steady uniform

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is

2.5 m3/s
1.5 m3/s
0.25 m3/s
0.5 m3/s

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

tanθ = a/2g
tanθ = 2 a/g
tanθ = a/g
tanθ = a2/2g

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